X1 - How Far Can It Grow? The X1 box is the gee-whiz gadget featured on all those Comcast TV ads, and makes one's mouth drool. But it's still an expensive feature proposition for many customers. I wonder just how much folks will pay to get it over time. As quoted, "...executives boasted that they have now deployed 5 million X1 set-top boxes across the US, covering a decent chunk of their 22 million-plus households." Just what percentage of the 22 million homes would be deemed successful and a good ROI? And where will the sales peak at current subscription pricing?